Julabo LH 40 Operating Manual Download

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19512761.doc

Print date: 13.06.07

Operating Manual

High Dynamic Temperature System



with integrated programmer

Presto

LH 40

Version: V45D-01

Printed in Germany
Changes without prior notification reserved
1.951.2761BE4 03/07

Innovative Temperature Technology

JULABO Labortechnik GmbH
77960 Seelbach / Germany



+49 (0) 7823 / 51-0



+49 (0) 7823 / 24 91



[email protected]



www.julabo.de

Summary of Contents for LH 40

Page 1: ...with integrated programmer Presto LH 40 Version V45D 01 Printed in Germany Changes without prior notification reserved 1 951 2761BE4 03 07 Innovative Temperature Technology JULABO Labortechnik GmbH 7...

Page 2: ...remove warning labels Never operate damaged or leaking equipment Never operate the unit without bath fluid in the bath Always turn off the unit and disconnect the mains cable from the power source bef...

Page 3: ...tting the pump pressure stage 25 7 4 Setting the safety temperature with shutdown function 26 7 5 Internal external control 28 8 MENU FUNCTIONS 28 8 1 Configuration 30 8 2 Control parameters 33 8 3 St...

Page 4: ...inged 6 Handle foldaway 7 Venting grid removable 8 Drain with drain port 2 Local operating board 2 1 VFD Info Display Header Control indicators see section 2 2 Line 1 Actual value Int or Ext To swap p...

Page 5: ...the VFD Line 2 TANK Safety temperature in internal bath Line 3 RES Safety temperature in internal reservoir 2 6 Adjustable excess temperature protection safety temperature Used for setting the safety...

Page 6: ...ting setpoint values Set the following values in Line 1 the working temperature Setp Line 2 the high temperature limit Overt Line 3 the low temperature limit Subtmp Line 4 the pump pressure stage St P...

Page 7: ...akers resettable 16 A 16 A M P 16 A M P 16 A M P 16 A M P F1 F4 F2 F3 F1 and F3 Compressor F2 and F4 Heater Pump 12 Mains power cable with plug 13 14 Pump connectors Return Feed M16x1 15 Overflow conn...

Page 8: ...the external system The high pump capacity can be reduced by regulating the motor speed in five grades It may thus be adapted to sensitive vessels The cooling unit may be cooled with air Setting is r...

Page 9: ...filling process the menu option Mode has to be set on Sys close Working In case of a closed external system the filling pipe 25 remains open and allows a change in volume of the bath liquid caused by...

Page 10: ...L80 85 170 63 112 transparent 5 Warning Thermal H5S Thermal HL 45 Thermal HL 80 These bath liquids may only be used in e x t e r n a l c l o s e d s y s t e m s loop circuits up to the indicated max w...

Page 11: ...ly in the termperature circuit A safety device supervises and controls the the temperature in the internal reservoir The temperature of the bath liquid is maintained constant at approx 20 C The safety...

Page 12: ...ient temperature 5 liters Intended working temperature range 40 C bis 250 C Change in volume caused by temperature 1 75 liters Here an external expansion vessel is required Order no 8 970 830 Example...

Page 13: ...ning Tubing At high working temperatures the tubing used for temperature application and cooling water supply represents a danger source A damaged tubing line may cause hot bath liquid to be pumped ou...

Page 14: ...gerant is specified on the type plate For 0 48 kg of refrigerant R404A a room space of 1 m 3 is required 5 4 Connect the external consumer The temperature systems are designed for temperature applicat...

Page 15: ...via the connector 15 If at the desired lowest temperature low liquid level alarm is not triggered there is no need to use an external expansion vessel Notice If an expansion vessel is not used make su...

Page 16: ...ternal reservoir for the different models is included in the table below Filling is performed in two sections In section 2 the temperature system starts an automatic filling process enabling convenien...

Page 17: ...and on again with the mains power switch 1 Wait until the self test is completed Press the key to start the automatic filling process As soon as the pump pressure indication in the 3rd line of the VF...

Page 18: ...system Presto principle page 9 Press the respective keys in the following order 1 MENUE key 1x 2 Cursor key up to Submenu Pump 3 Enter key 1x 4 Cursor key 1x up to Pump 5 P key sys open sys close fil...

Page 19: ...DISPLAY the message Degasifying active is inserted In this phase the temperature rise is stopped the pump motor and the ventilation valve are activated alternately audible During the heating up phase...

Page 20: ...ve Place a suitable vessel 8 2 for accepting the used bath liquid underneath the drain Slide a short piece of tubing onto the drain port and hold the end into the vessel Unscrew the drain screw by som...

Page 21: ...urns to the previous operating mode that was active before it was turned off keypad control mode manual operation via the unit itself RD or remote control mode operation via PC Selecting the language...

Page 22: ...YSTEM is shown when starting Notic For physical reasons refrigeration units provide full cooling performance only after some minutes After the start up to 5 minutes can go by until the cooling capacit...

Page 23: ...ing values in Line 1 the working temperature in C Setp Line 2 the high temperature limit in C Overt Line 3 the low temperature limit in C Subtmp Line 4 the pump pressure stage St Pump Enter the desire...

Page 24: ...o enter the new value examples 130 00 C 13 00 C Press enter to store the selected value Setp 120 00 C Overt 130 00 C Subtmp 110 00 C St Pump 2 Subtmp Setting the low temperature limit Setting in line...

Page 25: ...g the pump pressure stage Setting in line 4 The value previously set appears on the DIALOG DISPLAY LCD A flashing segment indicates that a value needs to be entered Use the keypad to enter the new val...

Page 26: ...the desired value example 150 C Setting range 0 C to 320 C in 2 C steps The alarm is indicated by optical and audible signals continuous tone The error messages opposite appear on the DIALOG DISPLAY L...

Page 27: ...TANK 15 C above the working temperature setpoint The safety temperature value RES should be set at least 25 C below the fire point of the bath liquid used Important From time to time the safety device...

Page 28: ...DIALOG DISPLAY LCD indicates the effective control type in line 4 Control intern or Control extern Setp 120 00 C IntAct 21 00 C ExtAct 20 00 C Control Extern Int S 120 00 E 20 00 Press the start stop...

Page 29: ...Presto 29...

Page 30: ...trolled system temperature application system the control parameters Xp Tn and Tv will be automatically determined and stored Possible parameters off no identification The control parameters ascertain...

Page 31: ...for setpoint selection The active mode is indicated on the DIALOG DISPLAY LCD The control indicator R REMOTE is illuminated in the header of the VFD Info Display if setpoint selection is effected via...

Page 32: ...u fully observe the safety and warning functions of the instrument If the setpoint is given via the serial interface no AUTOSTART is possible STAND BY Stand by input External stand by for emergency sw...

Page 33: ...revious menu level Proportional range Xp The proportional range is the range below the selected temperature value in wich the the control circuit reduces the heating power from 100 to 0 Resetting time...

Page 34: ...h both adjustments a sufficient temperature stability is reached after approximately the same time C t setpoint 5 3 0 Temp intern Temp extern CoSpeed 0 up to 5 This parameter affects the march tempera...

Page 35: ...perature system is started with the start key and the bath is heated to the desired temperature for example 100 C At the end of the program the programmer switches to the operating state and holds the...

Page 36: ...hes to waiting mode and a flashing line wait appears on the DIALOG DISPLAY LCD The start time and actual time are permanently indicated on the display Int S 120 00 E 120 00 Indication after starting t...

Page 37: ...instrument is put on hold and the message Stand By flashes on the DIALOG DISPLAY LCD Important To achieve this the stand by condition must first be activated and the AUTOSTART function turned on See...

Page 38: ...lock Press enter to select the submenu Int Programmer Use the up down cursor keys to select the desired option Then press enter to open A flashing segment indicates that a number or value needs to be...

Page 39: ...arget temperature and time period are considered It makes sense to leave out section numbers in the profile in order to use them later for corrections in the profile Important If a time of 00 00 is se...

Page 40: ...ve sections are to be deleted In lines 2 and 3 of the DIALOG DISPLAY LCD enter the numbers of the sections to be deleted Press enter delete no yes Press the P key to select the parameter yes and press...

Page 41: ...t active setpoint temperature Keypad integr programmer ext programmer ActInt internal actual temperature value bath temperature ActExt external actual temperature value external sensor Power periodic...

Page 42: ...the external programmer Voltage voltage input Current current input Select the desired input value with the P key and set with enter L Value Setting the LOW value Adjust and set the lowest desired wo...

Page 43: ...ent value by pressing the appropriate buttons on the keypad of the instrument Example A 200 C and set by pressing enter Return to the standard display by pressing escape Example B in the diagram serve...

Page 44: ...re adjustable 100 corresponds to the values in the technical specifications of the equipment Select the submenu Limits with enter Select the desired option with the up down cursor keys A flashing digi...

Page 45: ...IntAct xx 00 C ExtAct 51 22 C Control Intern ATC Ext serves calibration of an external Pt100 sensor Immerse the external Pt100 sensor and a calibrated thermometer together in a calibration bath at 50...

Page 46: ...d option with the up down cursor keys Enter the desired value for the flashing digit Pump OFF ON Mode drain fill sys open sys close Press the P key to select the desired parameter and set with enter R...

Page 47: ...or in the internal reservoir RES is defect The safety temperature value lies below the working temperature setpoint Set the safety temperature to a higher value CODE 14 Safety sensor defect TANK The s...

Page 48: ...sages appear every 10 seconds as long as the compressor is not switched on although requested by the instrument After a short cooling interval the motor will be automatically reconnected and the messa...

Page 49: ...surrounding walls Regularly check the tubing for material defects e g for cracks Before cleaning the unit disconnect the power plug from the mains socket Notice When you have finished the application...

Page 50: ...in assignments RS485 Pin 3 A Pin 5 0 VD Signal GND Pin 8 B Pin 1 2 6 7 9 Reserved do not use Interface correspondence Instrument Computer Instrument Computer 9 pole 25 pole 9 pole 9 pole Pin 2 RxD Pin...

Page 51: ...alarm signal This potential free change over contact is activated in case of an alarm when pins 2 and 3 are connected Switching capacity max 30 W 40 VA Switching voltage max 125 V Switching current ma...

Page 52: ...ips for using the STAND BY input The stand by function can be used in conjunction with the AUTOSTART feature see page 32 1 If the Autostart function is NOT turned ON the stand by input should be used...

Page 53: ...ace parameters are set by selecting the submenu Interface on the instrument Normally this is a one time only adjustment Selecting and setting menu items see page 44 Factory settings RS232 BAUDRATE 480...

Page 54: ...rameter the character separating decimals in a group is the period end of file Hex 0D The commands are divided into in or out commands in commands asking for parameters to be displayed out commands se...

Page 55: ...egistered by the safety sensor TANK in_pv_05 none Pump pressure in bar in_sp_00 none Working temperature in_sp_03 none High temperature warning limit in_sp_04 none Low temperature warning limit in_sp_...

Page 56: ...h and external system in_par_06 none Xp control parameter of the internal controller in_par_07 none Tn control parameter of the internal controller in_par_08 none Tv control parameter of the internal...

Page 57: ...l dynamics standard out_sp_00 xxx x Set working temperature out_sp_03 xxx x Set high temperature warning limit out_sp_04 xxx x Set low temperature warning limit out_sp_07 x Set the pump pressure stage...

Page 58: ...e cascade controller 12 4 Status messages error messages The instrument sends data including error messages only when the computer sends a query Status messages Description 00 MANUAL STOP Presto in OF...

Page 59: ...ue lies outside the adjusted range for the high and low temperature warning limits But value is stored 14 TEMPERATURE LEVEL ALARM Safety temperature alarm 15 EXTERNAL SENSOR ALARM External control sel...

Page 60: ...ozone as it looks today However during the long time of use the regulations for disposal might change Subsequently only specialists should take care of disposal Valid in EU countries Directive 2002 9...

Page 61: ...ervoir connecting tubing and external system should be rinsed several times using cleaning liquid S 20 00 ID 0 Caution Choose the detergent according to the bath liquid which is used E g Ethanol Silic...

Page 62: ...ture system with cleaning liquid See chapter 5 6 Filling In the submenu Pump the unit has to be adjusted on the operating status Sys close Set the working temperature setpoint Recommendation 20 C Pres...

Page 63: ...working What to do when a dangerous substance was spilled on or in the unit Before starting to work obtain information concerning the substance and determine the method of decontamination 17 Maintenan...

Page 64: ...re selection digital via Removable control module RD indication on DIALOG Display LCD remote control via personal computer indication on monitor Temperature indication VFD Info Display DIALOG DISPLAY...

Page 65: ...Reciprocal sensor monitoring between working and safety sensors difference 25 C Alarm indication optical audible permanent Standards EMC regulations EN 61326 Guideline for first voltage range EN 61010...

Page 66: ...namic Temperature System LH40 This unit is manufactured in compliance with the following guidelines electrical equipment for control technology and laboratory application EMC requirements outlined by...

Page 67: ...months limited to a maximum of 10 000 working hours To apply for this extended warranty the user must register the unit on the JULABO web site www julabo de indicating the serial no The extended warra...

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